#sgnav {width:100%; float:left; clear:both; margin:10px 0 20px 0; display: block;}
#sgnav ul{ list-style:none; float:left; margin:0px; padding:0px; clear:botn;}
#sgnav li{ list-style:none; float:left;}
#sgnav li{ margin:0;}
#sgnav a {display:block;background-image: url(sgnav.png);background-repeat: no-repeat;color: #000; width:120px; height:40px; cursor:hand; text-decoration: none;}
#shuabao a:link,#shuabao a:visited{background-position: 0px 0px;}
#duanzi a:link,#duanzi a:visited{background-position: -120px 0px;}
#renpin a:link,#renpin a:visited{background-position: -240px 0px;}
#jiongma a:link,#jiongma a:visited{background-position: -360px 0px;}
#youxi a:link,#youxi a:visited{background-position: -480px 0px;}
#gifs a:link,#gifs a:visited{background-position: -600px 0px;}
#manhua a:link,#manhua a:visited{background-position: -720px 0px;}

#shuabao a:hover ,#shuabao a:active {background-position: 0px -40px;}
#duanzi a:hover ,#duanzi a:active {background-position: -120px -40px; }
#renpin a:hover ,#renpin a:active {background-position: -240px -40px; }
#jiongma a:hover ,#jiongma a:active {background-position: -360px -40px; }
#youxi a:hover ,#youxi a:active {background-position: -480px -40px; }
#gifs a:hover ,#gifs a:active {background-position: -600px -40px; }
#manhua a:hover ,#manhua a:active {background-position: -720px -40px; }